Al-Zabad, R.A.T., Ayad H. Al-Khafaji and Hamid T.AL-Saad 2021. Concentrations of Polychlorinated Biphenyls (PCBs) in Phragmites australis of Shatt AL-Arab River. South of Iraq. Al-Qadisiyah Journal of Pure Science. 26, 4 (Jul. 2021), 199–209. DOI:https://doi.org/10.29350/qjps.2021.26.4.1422.